Transcript for National Rifle Association News Conference Interrupted by Protesters

En the head of the national rifle association called a news conference in response to the shootings in newtown, you can see he was repeatedly interrupted by protesters. And celebrities are weighing in on tissue. Here's abc's pierre thomas. Reporter: The nra's solution for the massacre at sandy hook, armed security at every school. The only thing that stops a bad guy with a gun is a good guy with a gun. The nra has blood on its hands. Reporter: The nra leader had barely begun when protesters blamed the powerful lobby for the nation's epidemic of gun violence. Nra, stop killing our children. Reporter: But the nra was defiant. After remaining silent in the wake of the worst school shooting in the nation's HISTORY, wayne LaPierre was on the attack, blaming others for the recent carnage. High on the list, violent video games. There exists in this country, a callous, corrupt and corrupting shadow industry that sells and stows violence against its own people. Reporter: Critics pounced. The nra's blanket call to arm our schools is really nothing more than a distraction. Reporter: New york city mayor michael bloomberg called the nra statement a shameful evasion of the crisis. The mayor wants what he calls reasonable restrictions. A ban on assault rifles and high-capacity magazines. And bloomberg has a cavalcade of stars demanding action. Demand a plan. Reporter: But the nra is making clear, that plan had better not infringe on the right of gun owners. For "good morning america," pierre thomas, abc news, washington.

This transcript has been automatically generated and may not be 100% accurate.

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